Nix Ultra 2-in-1 Super Lice Treatment Solution is for use on head hair and is safe for use on children 2 years and older. Then, remove lice and eggs (nits) from head hair with the Nix Premium Metal 2-Sided Lice Removal Comb. The 2-sided comb features wide teeth that are set wider apart to help detangle hair and smaller teeth that are set closer together to assist in the removal of lice and eggs (nits). Spanish instructions included.